Engineering Specification: Zurn AquaSpec® Z81104-XL Polished chrome-plated cast brass faucet body with integral shanks, quarter turn ceramic disc cartridges and a 4" [102mm] long integral cast spout. Unit is furnished with a 2.2 GPM [8.3 L] pressure compensating aerator (complying with ANSI A112.18.1 Standard for flow), 4" [102mm] vandal-resistant color-coded metal wrist blade handles, mounting hardware and 1/ 2" NPSM coupling nuts for standard lavatory risers. Vandal-Resistant Pressure Compensating Male Laminar Flow Outlet Zurn Lead Free products (-XL) is the line of durable, high quality brass faucets and fixtures that are designed and manufactured to comply with Section 1417 of the Safe Drinking Water Act (SDWA) which mandates the weighted average lead content of no more than 0.25% of the wetted surface. This product should be used with a WaterSense labeled counterpart with a compatible flush volume to ensure that the entire system meets the requirements for water efficiency and performance.